Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 199 · 40 questions

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

1. 1.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) the small pebble (d) neither of them
2. 2.🔍 Which is the odd one out? (a) a piece of thermocol (b) a metal key (c) an iron nail (d) a steel spoon
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a mirror (d) small test objects
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) whether it floats (c) the amount of clay (d) the tub of water
5. 5.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a magnet (d) a results table
6. 6.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
7. 7.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to splash everyone (d) to win a prize
8. 8.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
9. 9.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) a few ice cubes (d) more plain water
10. 10.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) sea water is warm (d) it has a magnet
11. 11.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🛟 Which of these sinks in water? (a) a dry leaf (b) a feather (c) a cork (d) a pebble
14. 14.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
15. 15.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a battery cell (c) a mirror (d) a tub of water
17. 17.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a results table (d) a magnet
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) yeast (c) a towel for spills (d) small test objects
21. 21.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
22. 22.True or false: a metal key floats on water. (a) False (b) True
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a towel for spills (d) a magnet
24. 24.🛟 Which of these floats on water? (a) a metal key (b) a ping-pong ball (c) a pebble (d) a coin
25. 25.True or false: a metal key sinks in water. (a) True (b) False
26. 26.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
27. 27.True or false: a ping-pong ball sinks in water. (a) True (b) False
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) True (b) False
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
32. 32.True or false: a feather sinks in water. (a) True (b) False
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a balloon (d) a battery cell
35. 35.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
36. 36.True or false: a feather floats on water. (a) True (b) False
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) small test objects (d) turmeric powder
38. 38.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
39. 39.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we change it (b) we measure it (c) we keep it the same

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